Garmin DEZL LGV1020 POI handling

Hi all, hope well.

So I’ve invested in a Garmin Dezl1020 and am busy personalising. Not sure if it’s me but I can’t get my head around how it handles POIs.
I’ve been to the BP website and they had a selection of files for me to download regarding their stations.

  1. TomTom all.
  2. TomTom Bunker sites only.
  3. Garmin all.
    I wanted Garmin bunker sites only so I downloaded the TomTom one and used Conversion | MyGeodata Converter | MyGeodata Cloud to convert from ov2 to the gcx format that Garmin require. Then I backed up the device with Garmin Express and used the official Garmin POILoader to transfer the file(s) to my device.

Am I right in thinking that I should now see these BP stations on my map at all times?

Another question whilst there if you’d all be so kind.
EVERY time I start the device it asks me what vehicle type I’m in. Is there not a way to make it remember?